Incessant rain in Quang Ninh Province since Sunday has triggered landslides and floods that killed eight people and left six others missing.
Colonel Nguyen Duy Tan, the police chief in Ha Long Town, said a major landslide buried three local houses with ten people inside on Monday.
Rescue workers have saved one person and retrieved two bodies, and will continue to look for the other seven, he said.
Earlier, a mother and her two daughters in Cam Pha Town died after their house was flooded in the worst inundation in the history of the northern province. Many places around the town were under four meters of water.
Many families have been evacuated out of flooded areas.
On early Tuesday, many streets were still being submerged in water. Soldiers have been mobilized to help local residents.
Dang Huy Hau, deputy chairman of Quang Ninh People’s Committee, said more than 1,500 tourists have been stranded on Co To Island after all boats were suspended.
Quang Ninh has banned all boats and ships since July 25 due to strong winds and rough seas triggered by a low-pressure area.
Co To District authorities have urged local hotels and guest houses to offer lower room rates to the tourists.
By late Monday, heavy rain has flooded about 2,260 houses and vast areas of agriculture land with total damage estimated to be around VND112 billion (US$5.1 million).
The National Hydrometeorological Forecasting Center said that the low pressure area will continue to trigger rains in most northern provinces with high threats of landslide in mountainous areas.